L4960 IC – 2.5A Switching Regulator IC
The L4960 is a monolithic power switching regulator delivering 2.5A at a voltage variable from 5V to 40V in step down configuration. Features of the device include current limiting, soft start, thermal protection and 0 to 100% duty cycle for continuous operation mode. The L4960 is mounted in a Heptawatt plastic power package and requires very few external components. Efficient operation at switching frequencies up to 150KHz allows a reduction in the size and cost of external filter components.
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Description
The L4960 is a monolithic power switching regulator delivering 2.5A at a voltage variable from 5V to 40V in step down configuration. Features of the device include current limiting, soft start, thermal protection and 0 to 100% duty cycle for continuous operation mode. The L4960 is mounted in a Heptawatt plastic power package and requires very few external components. Efficient operation at switching frequencies up to 150KHz allows a reduction in the size and cost of external filter components.
Features:-
? 2.5a Output Current
? 5.1v To 40v Oputput Voltage Range
? Precise (? 2%) On-Chip Reference
? High Switching Frequency
? Very High Efficiency (Up To 90%)
? Very Few External Components
? Soft Start
? Internal Limiting Current
? Thermal Shutdown
Specifications:-
| Symbol | Parameters | Values | Units |
| V1 | Input voltage | 50 | V |
| V1 – V7 | Input to output voltage difference | 50 | V |
| V7 | Negative output DC voltage | -1 | V |
| Negative output peak voltage at t = 0.1?s; f = 100KHz | -5 | V | |
| V3, V5 | Voltage at pin 3 and 6 | 5.5 | V |
| V2 | Voltage at pin 2 | 7 | V |
| I3 | Pin 3 sink current | 1 | mA |
| I5 | Pin 5 source current | 20 | mA |
| Ptot | Power dissipation at Tcase ? 90?C | 15 | W |
| Tj, Tstg | Junction and storage temperature | -40 to 150 | ?C |
Additional information
Operating voltage | 2.5 3.0V |
Pixel Resolution | 0.3MP |
Photosensitive array | 640 x 480 |
Optical Size | 1.6 inch |
Angel of view | 67 degrees |
Maximum Frame Rate | 30fps VGA |
Sensitivity | 1.3V/(Lux-sec) |
Dormancy | Less than 20A |
Power consumption | 60mW/15fpsVGA YUV |
Temperature operation Range | -30 C ~ 70 C |
Pixel area | 3.6 x 3.6 m |
Signal to noise ratio (SNR) | 46 dB |
Dynamic range | 52 dB |
Specification
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